python 模块

 1 import sys,time
 2 for i in range(1,100):
 3     if i < 9:#判断是否是占两位数
 4         sys.stdout.write(‘#‘+‘%‘+str(i+1)+"\b\b")#进度条退两格，为连接下一个#腾地方
 5         sys.stdout.flush()#刷新显示
 6         time.sleep(0.5)
 7     else:
 8         sys.stdout.write(‘#‘ + ‘%‘ + str(i + 1) + "\b\b\b")
 9         sys.stdout.flush()
10         time.sleep(0.5)

1 time.sleep(5)
2 print("wake up ....")
3 print(time.time())#时间戳1970 1 1到现在的过去多少秒
4 print(time.ctime())#返回当前时间
5 print(time.ctime(time.time()-86400))#将时间转换成字符串昨天的这个时间
6 time_obj=time.gmtime(time.time()-86400)
7 print(time_obj)
8 print("%d-%f-%s %s:%s" % (time_obj.tm_year,time_obj.tm_mon,time_obj.tm_mday,time_obj.tm_hour,time_obj.tm_min)) #格式化
9 # import sys
"""

wake up ....
1507429553.1381178
Sun Oct 8 10:25:53 2017
Sat Oct 7 10:25:53 2017
time.struct_time(tm_year=2017, tm_mon=10, tm_mday=7, tm_hour=2, tm_min=25, tm_sec=53, tm_wday=5, tm_yday=280, tm_isdst=0)
2017-10.000000-7 2:25

"""

1 import datetime
2 print(datetime.datetime.now())#返回当前系统时间
3 print(datetime.date.fromtimestamp(time.time()))#时间戳直接转成日期格式
4 print(datetime.datetime.now() + datetime.timedelta(3))#当前时间加三天
5 print(datetime.datetime.now() + datetime.timedelta(-3))#当前时间减三天
6 print(datetime.datetime.now() + datetime.timedelta(hours=3))#当前时间加3小时
7 print(datetime.datetime.now() + datetime.timedelta(minutes=30))#当前时间加30分钟
"""
运行结果

2017-10-08 11:11:59.362852
2017-10-08
2017-10-11 11:11:59.362852
2017-10-05 11:11:59.362852
2017-10-08 14:11:59.362852
2017-10-08 11:41:59.362852

"""

1 import sys
2 print(sys.path)
3 print(sys.argv)
4 if sys.argv[1] == ‘sleep‘:
5     print("hello")
6 else:
7     print("wakeup")
"""

H:\python17\w4>python timemodle.py sleep
[‘timemodle.py‘, ‘sleep‘]
hello

H:\python17\w4>python timemodle.py sleep
[‘H:\\python17\\w4‘, ‘C:\\Python27\\lib\\site-packa
ges\\paramiko-1.13.0-py2.7.egg‘, ‘C:\\Windows\\syst
em32\\python27.zip‘, ‘C:\\Python27\\DLLs‘, ‘C:\\Pyt
hon27\\lib‘, ‘C:\\Python27\\lib\\plat-win‘, ‘C:\\Py
thon27\\lib\\lib-tk‘, ‘C:\\Python27‘, ‘C:\\Python27
\\lib\\site-packages‘]
[‘timemodle.py‘, ‘sleep‘]